diff --git a/Cargo.toml b/Cargo.toml
index 86c0f9c..ea4ef3d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
 serde_qs = "0.5"
-base64 = "0.11"
+base64 = "0.13"
 reqwest = { version = "0.9", default-features = false, features = ["rustls-tls"] }
 failure = "0.1"
 log = "0.4"